Dude you purposely forgot to mention the number one tribe of them all: LasseCash
up like 20x in a month, then your graphs of LEO and POB looks like dogshit... some people took profit the last few days, I will say 2 more weeks and we go even higher!
About centralization / decentralization please read / watch this: https://www.lassecash.com/lassecash/@lasseehlers/contrary-to-popular-opinion-decentralized-ownership-might-be-is-a-myth
My best guess is that LEO and POB has more centralization of ownership then LasseCash has, it is just hidden in a bunch of anonymous accounts controlled by 1-10 people most likely. So in the end, what you want? A fake BS token with anonymous ownership or a tribe with transparency and a clear leader, who cares about the price going up? Its up to you, either way we go up again soon!
By the way HEX is number one, PULSE is number two and LasseCash is number three in the whole cryptocurrency market. And 
Dont know why I always have to do the hard work on Hive (former Steem) and still get little rewards?? Thats life I guess... not happening on LasseCash!
RE: The shift in power, how Proof of Brain (POB) became King of the Hive Engine tokens